Inking mechanism for multiple-color-printing machines



Jan. 3l, 1928.

J. F. LOUGHERY INKING MECHANISM FOR' MULTIPLE COLOR PRINTING MACHINES Filed April '7. 1926 4 Sheets-Sheet l IN VEN TOR.

ATTORNEY,

` Jan. 31, 1928.

J. F. LOUGHERY INKING MECHANISM FOR MULTIPLE coLoR PRINTING MACHINES Filed April '7. 1926 4 Sheets-Sheet' 2 INVENTOR.

M ATTORNEY.

IIIII.. IV. l

@Valued-F152 Jan. 31, 1928. 1,657,542

J. F. LouGHl-:RY ,y

INKING MECHANISM FO'R MULTIPLE COLOR PRINTING MACHINES Jan. 3l, l928.-\L I 1,657,542

. J. F.` LOUGIHERY INKING MEGHANISM FOR MULTIPLE COLOR PRINTING MACHINES Filed mm14 7.. 192e 4 sheets-sheet 4 i VENToR.

iisd-wf..

A TTORNEY.

The traine also provided with inner tlaelt ways l and 5 to guide the type hails t whirh earryY the impression jt'orms 7. 'ilhese typo beds t3 are connected. together and are drivenv in a similar manner to that disclosed in my prior patent to which I have hereinbe'l'ore referred.

lith the hiking' mechanism illustrated, I employ tive type heds 6, t'onr ot which carry impression torms and one ot which is not provided with an impression torni. The inner tracks Lt and ii 'torni a patlmvay,which embinlies a straight reach wa)7 S whieh passes beneath the impression cylinder 9 and a .straight reaeh wawr lll whirh passes beneath the hiking' mechanisn'i. The straight reach walvs l and l() are connected by the rui-ved end reaches ll and l2, so that an endless, continuous path is l'ormed in which the type beds travel.

A main drivingshalt ll is suitablyv journalled in the machine frame and is provided with pulleys ll. thereby adaptingit to he driven hy any desired source of power. The shaft 13 has tified lo it a gear l5, which meshes with a timing gear lt, fixed to a earn shaft 17.

The cam shatt l?, see Figure 2, has lifted to it one end ot an arm 1S, to which is conneeted one end oit a link lt). the opposite end ot said link being; connected to a stud Q0, carried by a quadrant 2l, which. is l'ulcrumed at to the machine frame.

lt onlv two eolors are to be printed, I employ hut one set ot inliine; niechanisn'i, but, as in the present ease. I contemplate printii'ig tour colors I employ two setsfo't inlcing mechanism Q3 and 2a respectively, and each set is a counterpart ot the other and operates in the same manner, except as to itsl timing.

A linlir Q5 is connected to the stud 20 et the quadrant 2l, and also to a stud 26 of a quadant Q7 which is lulerumed at 2S on the maehine traine. lt will thus be seen that the quadrants are simu]taneously operated. The quadrants at their peripheries are each provided with teeth Q9. and with the eam t'aees 30 and 3l at opposite ends ot such teeth` a portion ot the quadrant between such cam :laces heing eut awa; asl at 32 in order to provide a clearance.

The teeth Q9 of each quadrant mesh at rei-tain times with the teeth oit a `:rear segrment 323, each ot whieh Ais loosely mounted on its respective roel( shaft Si. suitablyv journalled in the machine traine.

llarh roel: shatt Si, see Figures and i. has loosely mounted on it one end oi" a rock arm 35 the free end ot which is connected by a rod 3G to a disc Si' .lixed to a shalt 538 journalled in a arm S), 'torniiuef part o'la roch arm hlt). lined at its lower end to its respective roeh shaft f-il. Each dise il? has ronneeted with it a rod 4l. whieh passes through a guide lffh rarred h i' the rot-lr arm Ll-l, a nd. l'lmtween siu'h guide and a head l-l lined to the rod ilj is interi'iosed :i tension spring' 4111.

ln order that a pair ol inliinef rollers` when in operative position will he locked in such position, each roel: arm Ilo is provided at .its .lower end with the shoes or bearing 'laces 45 and .iti and with a shoe or l'iearing Ytace -il-T.

The l'oregoinrl nieehanii-:ni is the mechanism employed tor selectively posilioiiine' at the proper time a pair ol' inliiiig;` rollers whirh carry ink oll a srlertire rolor.

lhe main driving shalt '123 has lixed to it a tear l-S which meshes willi a girar -lli lined to a shatt {it} suitably `iournalled in the machine trame.

lilie shaft 5t) earries a sprorloit wheel around which passes a sproelnt f hain which latter, see Figure 2, passes also around a sprocket wheel oil lixed to a shalt :il: journalled in the machine trame.

The r-halt :il: provided with a gear 53 which meshes with a gear 56 loosely mounted on a roel: sha'lt ifi-lv..

',l'he gear ot meshes with a gear 5T, which latter meshes with the gear 5S, which meshes with a guiar 59 having' elongated teeth and carried by a shaft (il), suitably joui-milled in the machine traine. (il designates a head ,iournalled in the roel; arms sl-tl. This head has 'iournalled therein in any desired man ner a pair ot' inltiner rollers (32 and a pair ol hiking rolls G3.

.lhe gear 59 has mes-hinal with it a gear tS-ltinted to a VibratingF roll which contaets with. the periijiheries of the inli'ingjy rollers l' to drive them. A, gear titi meshes with the lgear 5f) and is connected with a vilnatiug roll (5T which Contacts with the peripheries et' a pair ot hiking rollers (ifi lo drive them.

'.lhe gear 5f), see Figures l and l, ha,`l meshingl with it av pinion lS fixed to a shai't l!) which carries a worin Tl) whit-ll meshes with a worm wheel Tl. ,lxed to a shalt T2 suitably lioiirnalled in the inaehine trame. This worin wheel Tl. has eecenlrirallv ronneeted with it, one end nl a lint: 'TIL the oppositr-` end ot' which is eonneeted to a sleere 'Tit whirh is slidahly mountml on a rod lill.

The sleeve Ti; is provided with the arms To which extend into the annular grooves Ti' ol the Vibrating?r rolls (in and ('37 which are mounted on statioimriV rodsr Til. llarli oll IlaI vibrating rolls contarts with the periphery ol a pair ot inking rollers so that duringthe revolution otsnch inliinig rollers the vibrating rolls have a reeiproeatiner movenuiint imparted to them and thus cause the inhP to he u nitormly d istriljinted.

The inking rollers can he mounted in any desired manner and as illustrated. T have shown the ends of sueh rolls earried in jour itil] llfl Lemme nal boxes 80, which are slidable in the slotsv 81 in the brackets 82, which latter have preferably elongated slots 83 through which pass the fastening devices 84 which secure them tothe head (51. y

The journal boxes 80 are adapted to have their position adjusted by means of manually actuated screws 85.

In order to rook the rock shaft 34 and thereby the rock arms in order to raise the inking rollers above the path of travel of the impression forms so that a pair of inking rollers of different color can be brought into operative position at the proper time with one of the impression forms, I provide the following mechanism:

rlhe cam shaft 17 has .fixed to it a cam 80, see Figure 2, and this cam is provided with the cam yfaces 87 Which co-operate with a roller 88 carried by a. lever S9, the upper end of which is fulcrumed at 90 to the machine iframe. rlhe lower end of the lever S9 has connected to it atene end a link 91 the opposite end of which is connected to one `end of an arm 92, the opposite end of which is :tired to a rock shaft 34 so that the left hand set of inking rollers seen in Figure 2, will at the proper time be raised and lowered. o

The cam shaft 17 has also fixed to it a 'am 93, which is a counterpart of the cam 80, and which cO-operates with an antifriction roller 94 fixed to a lever 95 `the upper end of which is fulcrumed at 96 to themachine frame. The loiver end of the lever has connected to it one end of a` link 97, the opposite end of which is connectedto an arm 9S fixed at its opposite end to the rockshaft 34 which controls the raising and lowering of the other set of inking rolls, seen at the right hand side of Figure 2.

99 designates the feeding table. The type beds are connected at their inner sides with each other by means of a link 100 and they are provided in a manner similar to that de scribed in my prior Patent 1,849,895, with racks 101. lVhen the type beds are travellingover the straight course beneath the impression cylinder the length of each rack is `such that they meet, and these racks are driven by a single rack pinion in a similar manner described in my prior patent- The inking fountains 102 are of any desired or conventional construction, and, as illustated, their ductor rolls 103 co-operate with the fountain rolls 104 which latter are provided with ratchets 105, With which engage the pavvls 10.6 on the levers 107, said levers being operatively connected with 'the rock arms 108, each of which is connectedby means `.of a link 109 with its respective quadrant, such as for example, the quadrant i21.

Itwill. thus be seen that during a movement kof the quadrant, the fountain rolls will be rotated step by step and as these rollscoir tact with the ductor rolls, the ductor rolls `are always provided with the desired amount of ink to betransferred to the inkingl rollers vas such iii-king rollers of a set come into contact with their respective ductor rolls.

As I employ two pairs of inking rollers, l employ superimposed ductor and fountain rolls, there being a set consisting of a ductor roll and a fountain roll foreach pair of ink- 'ing rollers.

The drii-"ing shaft 153 is intergeared with the shaft of the impression cylinder 9, and a gear 110 meshes with a gear 111 which is lined to ai shaft 112 Which carries a main driving pinion 113, Which co-operates With one of the racks of a type bed to cause a continuous travel of the type beds of the impression forms arried thereby so that the impression forms are successively brought into cti-operation with the impression cylinder 9 andthe sheets carried thereby in the usual and conventional manner.

The shaft carries a sprocket Wheel `114 around which passes a sprocket chain 115 which passes around a sprocket Wheel 11G corresponding in construction and function to the sprocket Wheel so that it Will be understood that each set of inking rollers are driven in the same manner so that al description `of one will suffice for both and will be clear to those skilled in this art.

The operation of my novel inking mechanism for multiple color printing macliines `will now be apparent to those skilled in this art and is as follows:

Assuijning that the main driving shaft 1&3 is being driven, it` Will be understood that the type beds 6, upon which are mounted the im Jression forn'is T travel in a continuous path.

One of these type beds does not carry an impression form so that a sufficienttime interval provided to feed the sheets to and from the impression cylinder 9. 'l` he inking rollers are `continuously driven, and a pair of them is successively brought into the path of the impression forms, so that each of the impression forms will receive al dif'l'erent color of ink. As illustrated, the printingmachine is adapted to print four colors, and, for this reason, l employ four pairs of inking rollers, arraiiged in tivo sets with cach set having two pairs of inking rollers.

The main driving shaft 1? is intel-geared with the shaft 50, see Figures 1 and 2, thus driving the sprocket Wheels on said shaft, andv thereby the sprocket chains 52 and 115, so that by means of the gears 55, 5G, 5T, 58 see Figure 4, and the gear 59, see Figure 2, the gears 64 and 66 will be driven and as the rolls .65 and G7 driven by said gears contactavith the inking rollers and 68, the latter will be continuously driven, as is apparent.

In the position of the parts seen in Figure 2, a pair of inking rollers 63 is beingmoved in the direction of the arrow seen in Figure to bring them into operative inking position with respect to an impression iorm. .At this time it .is necessary for the rock shaft Si to be rocked outivardly, thereby raising the heads Gl so that sufficient clearance will be provided tor brin'tging` a pair of inliing rolls into operative position. This movement of the heads Gl into and from operative position is controlled by the cams 86 and 93.

As illustrated in Figure 2, one cam liace 87 (fo-operates with the roll SS causing the lever of) to move towards the right, thereby drawingdownwardly on the link 9i, and rocking,` the sha'lt Si in such a manner as to raise the head (il at the lett hand side seen in Figure o l'he cam shait't 1T also controls the posi tiouingi` oi. a pair ol inlring rollers which is accomplished in the iollovving` manner:

The arm i8 is connected with the link 1l) which is connected with the qual'lrant 2l, and tl 1e quadrants 2l and 2T are connected by the link 25, so that these two quadrants 2l and 2T will be rocked in unison, on their tulcrum and 28, respectively.

When a quadrant 2l, for example, is rocked, the teeth 29 meshing with the teeth ol' thc gear 33 will rock the arm 35, thereby causing the linl; 3G to rotate the disc 37 in the proper direction to change the position ol the head Gl, and thereby olf a pair of inking` rollers so as to move such pair into or out ot its ope 'ative position.

'.lfhe periphery of each quadrant is cut away at 32 to provide a clearance i'or the lower end of an arm 55, and on the further nievement oi' a quadrant, such as 2l, it will be apparent that the bearing iface 1l( will ride up on the cam 30, so that during the time an impression form is passing beneath a pair of inhing rollers which are in operative position, such pair et inlring` rollers Will be locked in operative position as will be understood hy reiterence to Figure 7 and will also be locked when in the reverse position, as seen in Figure S.

When a pair o'l inliing rollers are in inoperative position it will be locked in such position, due to the bearing` -l'aces lli and al?? ridinnl on the cam vlace 31. ot its respective quadrant. The inl; supplied to the fountain in any desired or conventional manner.

The impression cylinder is intergeared with the sha'lt '13, thereby driven by it so that it li'our colors are to be applied the ,inn pression cylinder 9 has live revolutions im parted to it d uring the travel of the :t'our impression lorms beneath it.

As one pair of inlringrollers move out of their operative position 'lfor inlringd an i1npression torni, another set of rollers move into operative position to apply another color olf ink to the next impression lorm.

Having thus described my invention, what I claim as new and desire lo secure by lietters Patent, is:

i. hiking i'i'ieclmnism ifor multiple color printing machines, coniprisinl a set o'lf inling rollers arranged in pairs, inh transfer ineehanisn'i for each pair ol.E inlriugr rollers, means to raise and lower said set and means to selectively oscillate each pair ol' inlaiug rollers into and out o'l' their inhinir position.

2. Iniciar; mechanism ior multiple color printing machil'ies, compris-inn` a sel ot inl:- ing rollers arranged in pairs, inl; Iransl'er mechanism for each pair o lf inlrinpA rollers, means to raise and lower said set, means to selectively move each pair olf inlrinej rollers into and out oli their hiking position, and means to ellect the locking ot each pair ol inlring rollers in the position lo which such pair has been adjusted.

3. Inlinpi mechanism for multiplo color printing machines, coluprisingl a plurality ol.I sets ot inlrinn' rollers, with the rollers arranged in pairs, ink transfer mechanism tor each pair olf linking; rollers, means to raise and lower each set at predetermined inici vals, and means to selectively oscillare each pair ol" inlring,r rollers into and out oil their inlring position.

4. l'i'ilinfb` mechanism "for nmlliple color printing' machines, comprising a set oli' inl(- in-gA rollers, ink transiter mechanism lor said iinlring,l `rollers, means to conlimiously revolve said inlring' rollers, means lo raise and lower each set et hiking rollers, and means to selectively oscillate the inliinn` rollers.

5. Inlingf mechanism ltor multiple color printing machines, comprising' a set o l inliing rollers arranged in pairs, inl( translfer mechanism :li'or each pair ol inlrinnl rollers, means to raise and lower .said set and means lo 'selectively oscillate each pair ol initier,r rollers into and ont ot their inlringi position, in combination with an impression cylindcr, and means to feed a plurality oit impression lorms into operative relation with said inking,r rollers and said inipression cyl inder. l

Inliing mechanism :l'or mulliple color printing machines, eoiuprisingi a sel ol. inl;Q ingl rollers arranged in pairs, a tension de vice 'tor said set, means lo oscillare said set into and out ol its operative position.` and means to liu-n said set lo seleeliicly briner iiilrinn rollers carrying: ink ol lilierenl rol` ors into and out ol. their inliinn' position.

7. lnlrinnv mechanism :l'or uullliplc color printing1 machines, compris-inn' a sel, oli inl: ing rollers arranged in pairs, a head in which said set is journalled, meins lo raise and lower said head, means lo continuously drive said rollers, means to selectively position a pair oif rollers in initier,r position, and a reciprocatory vibrating roller to cause a uniform distrilmtion ot ink ou said initier; rollers.

lill) refranes 8. Inliing mechanism for multiple color printing machines, comprising inking` rollers arranged in pairs, a head in 'which said rollers are journalled, means to aise and lower said head, means to partially rotate said head to selectively position predetermined rollers in inlring position, and cani ineens to lool; said head in the position to ing rollers arranged in pairs, a head in which said rollers are joiirnalled, agear operatively connected with said head to turn it, a quadrant having teeth to mesh with said gear, and provided with cams to effect the locking,` of said head in the position to which it has been adjusted, means to actuate said quadrant, ineans to raise and lower said head, and means to ellect the revolution of saidinking rollers. I

ll. Inliing mechanism for multiple color printing machines, con'iprising a plurality oi? sets of inliing rollers with inling rollers arranged in pairs, means to effect at prede terinined inter als the raising and loweringof each set, means to continuously revolve the inliingr rollers of each set, means to raise and lower each set, and means to turn each set in timed relation with the other lo selectively position Hiking rollers in operative inling position.

JOSEPH F. LOUGHERY. 

